The hex color #9d010c is a dark color. The web-safe version is Hex
#990000. A complementary color is
#62FEF3. The grayscale version is
#393939. A 20% lighter version of the original color is
#D0343F, and Hex
#6A0000 is the 20% darker color. If the color is saturated by 10%, you get
#A70008. If the color is desaturated by 10%, the color
#930710 is obtained.